Add flask_cors and CORS object for managing cross origin access

bootstrap.py

@@ -13,6 +13,7 @@ from pathlib import Path
 from flasgger import LazyJSONEncoder, Swagger
 from flask import Response
 from flask_restful import Api
+from flask_cors import CORS
 import threading
 
 import hub_api.helpers.session_helper as sh
@@ -28,8 +29,9 @@ from hub_api.energy_plus.idf_generator import IdfGenerator
 sh.begin_time = datetime.datetime.now()
 app = flask.Flask('cerc_api')
 app.json_provider_class = LazyJSONEncoder
-api = Api(app)
 
+api = Api(app)
+CORS(app)
 api.add_resource(Uptime, '/v1.4/uptime')
 
 # Session

requirements.txt

@@ -1,6 +1,7 @@
 flask
 flask_restful>0.3.8
 flask-apispec
+flask_cors
 marshmallow
 apispec
 geomeppy